結果

問題 No.482 あなたの名は
ユーザー torus711
提出日時 2017-02-10 22:41:47
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 30 ms / 2,000 ms
コード長 3,590 bytes
コンパイル時間 1,214 ms
コンパイル使用メモリ 106,468 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-12-29 20:15:07
合計ジャッジ時間 3,014 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 28
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp:44:66: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   44 | template <> struct getv_fmt< int >{ static constexpr char *fmt = "%d"; };
      |                                                                  ^~~~
main.cpp:45:72: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   45 | template <> struct getv_fmt< long long >{ static constexpr char *fmt = "%lld"; };
      |                                                                        ^~~~~~

ソースコード

diff #
プレゼンテーションモードにする

#include <iostream>
#include <iomanip>
#include <sstream>
#include <vector>
#include <string>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <stack>
#include <queue>
#include <deque>
#include <algorithm>
#include <functional>
#include <iterator>
#include <limits>
#include <numeric>
#include <utility>
#include <type_traits>
#include <cmath>
#include <cassert>
#include <cstdio>
using namespace std;
using namespace placeholders;
using LL = long long;
using ULL = unsigned long long;
using VI = vector< int >;
using VVI = vector< vector< int > >;
using VS = vector< string >;
using ISS = istringstream;
using OSS = ostringstream;
using PII = pair< int, int >;
using VPII = vector< pair< int, int > >;
template < typename T = int > using VT = vector< T >;
template < typename T = int > using VVT = vector< vector< T > >;
template < typename T = int > using LIM = numeric_limits< T >;
template < typename T > inline istream& operator>>( istream &s, vector< T > &v ){ for ( T &t : v ) { s >> t; } return s; }
template < typename T > inline ostream& operator<<( ostream &s, const vector< T > &v ){ for ( int i = 0; i < int( v.size() ); ++i ){ s << ( " " + !i 
    ) << v[i]; } return s; }
template < typename T > struct getv_fmt;
template <> struct getv_fmt< int >{ static constexpr char *fmt = "%d"; };
template <> struct getv_fmt< long long >{ static constexpr char *fmt = "%lld"; };
template < typename T > void getv( std::vector< T > &v ){ for_each( begin( v ), end( v ), []( T &a ){ scanf( getv_fmt< T >::fmt, &a ); } ); };
template < typename T > inline T fromString( const string &s ) { T res; istringstream iss( s ); iss >> res; return res; }
template < typename T > inline string toString( const T &a ) { ostringstream oss; oss << a; return oss.str(); }
#define NUMBERED( name, number ) NUMBERED2( name, number )
#define NUMBERED2( name, number ) name ## _ ## number
#define REP1( n ) REP2( NUMBERED( REP_COUNTER, __LINE__ ), n )
#define REP2( i, n ) REP3( i, 0, n )
#define REP3( i, m, n ) for ( int i = ( int )( m ); i < ( int )( n ); ++i )
#define GET_REP( a, b, c, F, ... ) F
#define REP( ... ) GET_REP( __VA_ARGS__, REP3, REP2, REP1 )( __VA_ARGS__ )
#define FOR( e, c ) for ( auto &&e : c )
#define ALL( c ) begin( c ), end( c )
#define AALL( a ) ( remove_all_extents< decltype( a ) >::type * )a, ( remove_all_extents< decltype( a ) >::type * )a + sizeof( a ) / sizeof( 
    remove_all_extents< decltype( a ) >::type )
#define DRANGE( c, p ) begin( c ), begin( c ) + ( p ), end( c )
#define SZ( v ) ( (int)( v ).size() )
#define EXIST( c, e ) ( ( c ).find( e ) != ( c ).end() )
template < typename T > inline bool chmin( T &a, const T &b ){ if ( b < a ) { a = b; return true; } return false; }
template < typename T > inline bool chmax( T &a, const T &b ){ if ( a < b ) { a = b; return true; } return false; }
#define PB push_back
#define EM emplace
#define EB emplace_back
#define BI back_inserter
#define MP make_pair
#define fst first
#define snd second
#define DUMP( x ) cerr << #x << " = " << ( x ) << endl
int main()
{
    cin.tie( 0 );
    ios::sync_with_stdio( false );
    cout << setprecision( 12 ) << fixed;
    int N;
    LL K;
    scanf( "%d%lld", &N, &K );
    VI A( N );
    getv( A );
    transform( ALL( A ), begin( A ), bind( minus< LL >(), _1, 1 ) );
    VI indices( N );
    REP( i, N )
    {
        indices[ A[i] ] = i;
    }
    REP( i, N )
    {
        if ( A[i] == i )
        {
            continue;
        }
        swap( A[ indices[i] ], A[i] );
        swap( indices[ A[ indices[i] ] ], indices[ A[i] ] );
        --K;
    }
    puts( K < 0 || K % 2 ? "NO" : "YES" );
    fflush( stdout );
    return 0;
}
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